[单项选择]Which one is not important for your safety on board ship?() A. know where the lifejacket is stowed B. know where the life-saving craft are fitted on the ship C. know the escape routes D. Good professional knowledge
第35题: [单项选择]女性,35岁。规律性上腹痛6年,为饥饿痛,进食后缓解。1天前出现腹痛加剧,呕血、黑便。查体:血压90/60mmHg,上腹部局限性压痛,血尿淀粉酶正常。该患者黑便的原因可能为()。 A. 结肠癌 B. 肠结核 C. 肝硬化门脉高压 D. 十二指肠溃疡 E. 缺血性肠病 参考答案:D 答案解析:饥饿痛,进食后缓解,一天前出现腹痛加剧,呕血、黑便,排除胰腺炎后,十二指肠溃疡可能性大。